<template>
  <el-card class="page-container">
    <template #header>
      <div class="header">
        <span>文章管理</span>
        <div class="extra">
          <el-button type="primary" @click="visibleDrawer = true"
            >添加文章</el-button
          >
        </div>
      </div>
    </template>
    <!-- 搜索表单 -->
    <el-form inline>
      <el-form-item label="文章分类：">
        <el-select placeholder="请选择" v-model="categoryId">
          <el-option
            v-for="c in categorys"
            :key="c.id"
            :label="c.categoryName"
            :value="c.id"
          >
          </el-option>
        </el-select>
      </el-form-item>

      <el-form-item label="发布状态：">
        <el-select placeholder="请选择" v-model="state">
          <el-option label="已发布" value="已发布"></el-option>
          <el-option label="草稿" value="草稿"></el-option>
        </el-select>
      </el-form-item>
      <el-form-item>
        <el-button type="primary" @click="initArticles">搜索</el-button>
        <el-button @click="initScreahInput">重置</el-button>
      </el-form-item>
    </el-form>
    <!-- 文章列表 -->
    <el-table v-loading="loading" :data="articles" style="width: 100%">
      <el-table-column
        label="文章标题"
        width="400"
        prop="title"
      ></el-table-column>
      <el-table-column label="分类" prop="categoryName"></el-table-column>
      <el-table-column label="发表时间" prop="createTime"> </el-table-column>
      <el-table-column label="状态" prop="state"></el-table-column>
      <el-table-column label="操作" width="100">
        <template #default="{ row }">
          <el-button
            :icon="Edit"
            circle
            plain
            type="primary"
            @click="edit(row)"
          ></el-button>
          <el-button
            :icon="Delete"
            circle
            plain
            type="danger"
            @click="del(row)"
          ></el-button>
        </template>
      </el-table-column>
      <template #empty>
        <el-empty description="没有数据" />
      </template>
    </el-table>
    <!-- 分页条
        <el-pagination v-model:current-page="pageNum" v-model:page-size="pageSize" :page-sizes="[3, 5, 10, 15]"
            layout="jumper, total, sizes, prev, pager, next" background :total="total" @size-change="onSizeChange"
            @current-change="onCurrentChange" style="margin-top: 20px; justify-content: flex-end" /> -->

    <!-- 抽屉 -->
    <el-drawer
      v-model="visibleDrawer"
      :title="title"
      direction="rtl"
      size="50%"
    >
      <!-- 添加文章表单 -->
      <el-form label-width="100px" :model="article">
        <el-form-item label="文章标题">
          <el-input placeholder="请输入标题" v-model="article.title"></el-input>
        </el-form-item>
        <el-form-item label="文章分类">
          <el-select placeholder="请选择" v-model="article.categoryId">
            <el-option
              v-for="c in categorys"
              :key="c.id"
              :label="c.categoryName"
              :value="c.id"
            >
            </el-option>
          </el-select>
        </el-form-item>

        <el-form-item label="文章内容">
          <div class="editor">
            <quill-editor
              theme="snow"
              contentType="html"
              v-model:content="article.content"
            >
            </quill-editor>
          </div>
        </el-form-item>
        <el-form-item>
          <el-button type="primary" @click="update('已发布')">发布</el-button>
          <el-button type="info" @click="update('草稿')">草稿</el-button>
        </el-form-item>
      </el-form>
    </el-drawer>
  </el-card>
</template>
<script setup>
import { Edit, Delete } from "@element-plus/icons-vue";
import { nextTick, ref } from "vue";
import { QuillEditor } from "@vueup/vue-quill";
import "@vueup/vue-quill/dist/vue-quill.snow.css";
import { Plus } from "@element-plus/icons-vue";
import { findAllCategory } from "../../api/Category";
import { ca } from "element-plus/es/locales.mjs";
import {
  findAllArticle,
  deleteArticle,
  addArticle,
  updateArticle,
} from "../../api/article.ts";
import { ElMessageBox, ElMessage } from "element-plus";

//查询全部文章信息
const initCategorys = async () => {
  let response = await findAllCategory();
  categorys.value = response.data.data;
};

initCategorys();

//添加文章数据模型
const article = ref({
  title: "",
  content: "",
  categoryId: "",
  state: "",
  createUser: JSON.parse(localStorage.getItem("userInfo")).userId,
});

//控制抽屉标签
const title = ref("新增文章");

//修改按钮单击事件
const edit = (row) => {
  title.value = "修改文章";

  article.value.title = row.title;
  article.value.content = row.content;
  article.value.categoryId = row.categoryId;
  article.value.state = row.state;
  //修改操作，数据模型中添加id属性，用于修改操作
  article.value.id = row.id;

  //显示抽屉
  visibleDrawer.value = true;
};

//修改

const update = async (state) => {
  //设置状态
  article.value.state = state;
  let response;
  if (title.value == "新增文章") {
    //增加操作
    response = await addArticle(article.value);
  } else {
    //修改操作
    response = await updateArticle(article.value);
  }

  if (response.data.code == 1) {
    ElMessage.success("添加成功");
    visibleDrawer.value = false;
    initCategorys();
    reset(); //重置表单
  } else {
    ElMessage.error(response.data.message);
  }
};

const reset = () => {
  title.value = "添加文章";

  article.value.title = "";
  article.value.content = "";
  article.value.categoryId = "";
  article.value.state = "";

  //清空content中的内容
  let cditor = document.querySelector(".ql-editor");
  cditor.innerHTML = "";
};

//文章分类数据模型
const categorys = ref(null);

//文章列表数据模型
const articles = ref(null);

//控制抽屉是否显示
const visibleDrawer = ref(false);

//条件搜索时 分类的选择
const categoryId = ref("");
const state = ref("");

//根据条件查询文章信息
const initArticles = async () => {
  let params = {
    categoryId: categoryId.value,
    state: state.value,
  };

  let response = await findAllArticle(params);
  articles.value = response.data.data;
};

initArticles();

//删除文章
const del = (row) => {
  ElMessageBox.confirm("确定要删除吗？", "提示", {
    type: "warning",
  }).then(async () => {
    let response = await deleteArticle(row.id);
    initArticles();
    if (response.data.code === 1) {
      ElMessage.success("删除成功");
      initArticles();
    } else {
      ElMessage.error("删除失败");
    }
  });
};

//重置搜索条件
const initScreahInput = () => {
  categoryId.value = "";
  state.value = "";
};
</script>

<style lang="scss" scoped>
.page-container {
  min-height: 100%;
  box-sizing: border-box;

  .header {
    display: flex;
    align-items: center;
    justify-content: space-between;
  }
}

/* 抽屉样式 */
.avatar-uploader {
  :deep() {
    .avatar {
      width: 178px;
      height: 178px;
      display: block;
    }

    .el-upload {
      border: 1px dashed var(--el-border-color);
      border-radius: 6px;
      cursor: pointer;
      position: relative;
      overflow: hidden;
      transition: var(--el-transition-duration-fast);
    }

    .el-upload:hover {
      border-color: var(--el-color-primary);
    }

    .el-icon.avatar-uploader-icon {
      font-size: 28px;
      color: #8c939d;
      width: 178px;
      height: 178px;
      text-align: center;
    }
  }
}

.editor {
  width: 100%;

  :deep(.ql-editor) {
    min-height: 200px;
  }
}
</style>
